Exhibitors, however, reported fewer international buyers than in previous years. One exporter of gaming hardware said “the event is dead” this year, with the protests having kept many people away.

The HKTDC said that a wide range of electronic brands, retailers and distributors from China attended the exhibition, while buyers came from as far afield as the Czech Republic, Romania, Russia, Turkey, Mexico, and even Iran.

There was no mention, however, of buyers from the US, which according to exhibitors, were thin on the ground. Those American representatives that did attend were specifically looking for products made in Vietnam rather than China, according to some exhibitors, as they sought to import goods that are not subject to trade war duties.

Despite the growing likelihood that the US and China will sign an interim trade deal at the Asia-Pacific Economic Cooperation summit in Chile in November, expectations are managed as to how significant the deal will be. It may result in some tariff delays, but existing tariffs are likely to remain in place.

Furthermore, the constant cycle of escalation and de-escalation in US-China tensions that has characterised the past 18 months has left many companies cold to announcements of progress or collapses in trade war talks, according to speakers at a supply chain forum organised by audit company Qima in Hong Kong on Thursday.

SZ Telstar moved its factory from Shenzhen to Bac Giang province in Vietnam in July to avoid paying tariffs on its sizeable US exports. Its stall at the Hong Kong event displayed a range of bluetooth projectors, to a backdrop of a sign saying “Made in Vietnam” – a signal to potential buyers that these are trade war-busting appliances. But its move out of Guangdong province has been far from plain sailing.

“The ‘Made in Vietnam’ label requires 40 per cent of the value to be added locally. However, raw materials cost 30 to 60 per cent more in Vietnam than in China, as the supply chain is not complete there. We are trying all possible means to purchase more materials from China,” said Amy Chen, key account manager for SZ Telstar.

Chen added that infrastructure and logistics in Vietnam also lag behind China, with SZ Telstar still having difficulties in finding logistics providers three months after the relocation, a common challenge for Chinese manufacturers shifting to Southeast Asia.

iStar, another Shenzhen-based company, which makes video game controllers, has also been hit by tariffs, since 40 per cent of its market share is in the US. It could have been worse – the company has gradually diversified its customer base over the years to manage risk, even before the trade war, when its US market share was 90 per cent. Still, it has no intention to relocate to avoid the tariffs.

“Our big buyers in the US said they will shift orders to our Indonesian competitors. If we were to open a factory in Indonesia, we have to send senior managers there, but nobody wants to go,” said Eva Leung, the company’s representative at the Hong Kong Electronics Fair. “We still have the option, but instead we will focus on expanding our domestic market, as the Chinese market is huge.”

Other attendees have so far survived the 15-month trade war unscathed. Avanline, a Shenzhen-based endoscope manufacturer which entered the US market in 2015, has kept its order book full, since its price is still competitive compared to international firms, despite additional tariffs.

“For the same product, our price is around one-tenth that of [Japanese competitor] Olympus,” said Josie Chen, who was manning the company’s sales booth in Hong Kong.

“Our US buyers just paid the tariffs and did not ask us to lower the prices. You know, even Nasa buys our products through our US partners.”